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Physics 14 Online
OpenStudy (anonymous):

An astronomer see a star that is very far away but still very bright. What can she conclude about the star? A. The star must be very large. B. The star must be very small. C. The star must be moving away from Earth. D. The star must be moving closer to Earth.

OpenStudy (ghazi):

A

OpenStudy (dls):

C

OpenStudy (anonymous):

A. The star must be very large.

OpenStudy (anonymous):

D. The star must be moving closer to Earth.

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